Two years ago, The Russian ruble’s exchange rate slumped, and Andrew Sumin and his team had to take a look at what email consists of. At the time, they didn’t have file deduplication in place, but they estimated that it could shrink the total storage size by 36%, because many users receive the same messages, such as price lists from online stores and newsletters from social networks that contain images and so on. In this article, he will describe how he implemented a deduplication system under the guidance of PSIAlt.
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